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b. 18-20

composition: Op. 28 No. 19, Prelude in E♭ major

..

In b. 18 and 20 Chopin changed in A the last L.H. note from g to d. Similar situations are in analogous b. 26 and 28.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A , Accompaniment changes

b. 19

composition: Op. 28 No. 19, Prelude in E♭ major

..

The crossings-out visible in A show that Chopin initially wrote in this bar 3 pedals, one for each triplet.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A

b. 21

composition: Op. 28 No. 19, Prelude in E♭ major

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The 5th R.H. quaver in GE1 is an erroneous a1 instead of f1. The mistake was rectified in GE2 (→GE3).

category imprint: Interpretations within context; Differences between sources

issues: Errors in GE , Terzverschreibung error , GE revisions

b. 21

composition: Op. 28 No. 19, Prelude in E♭ major

..

In A (→FC,FE) there are no accidentals in the 2nd L.H. triplet. Out of the two necessary flats, in GE and EE only one was added, the one lowering g to g.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 21

composition: Op. 28 No. 19, Prelude in E♭ major

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The last quaver in the bar in FE1 is an erroneous d2. The mistake was rectified in FE2 (→EE).

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , FE revisions